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CVE-2021-45528

HIGH
7.2
CVSS Score
Published: December 26, 2021 at 12:57 AM UTC
Updated: June 17, 2026 at 04:13 AM UTC
22 products affected across 1 vendorR7000 FirmwareR8000 FirmwareR7900 Firmware

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Severity
HIGH7.2
Exploit prediction
EPSS 0.6%

Description

Certain NETGEAR devices are affected by a buffer overflow by an authenticated user. This affects R6300v2 before 1.0.4.52, R6400 before 1.0.1.52, R6900 before 1.0.2.8, R7000 before 1.0.9.88, R7900 before 1.0.3.18, R8000 before 1.0.4.46, R7900P before 1.4.1.50, R8000P before 1.4.1.50, RAX75 before 1.0.3.88, RAX80 before 1.0.3.88, and WNR3500Lv2 before 1.2.0.62.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

R6300V2 Firmware· NETGEAR
95%
v ≤ 1.0.4.52
R6400 Firmware· NETGEAR
95%
v < 1.0.1.52
Affected range stops below 1.0.1.52, so it looks safe — our inference, not a vendor statement
R6900 Firmware· NETGEAR
95%
v < 1.0.2.8
Affected range stops below 1.0.2.8, so it looks safe — our inference, not a vendor statement
R7000 Firmware· NETGEAR
95%
v < 1.0.9.88
Affected range stops below 1.0.9.88, so it looks safe — our inference, not a vendor statement
netgear-r7000 (same device)
R7900 Firmware· NETGEAR
95%
v < 1.0.3.18
Affected range stops below 1.0.3.18, so it looks safe — our inference, not a vendor statement
netgear-r7900 (same device)
R7900P Firmware· NETGEAR
95%
v < 1.4.1.50
Affected range stops below 1.4.1.50, so it looks safe — our inference, not a vendor statement
netgear-r7900p (same device)
R8000 Firmware· NETGEAR
95%
v < 1.0.4.46
Affected range stops below 1.0.4.46, so it looks safe — our inference, not a vendor statement
netgear-r8000 (same device)
R8000P Firmware· NETGEAR
95%
v < 1.4.1.50
Affected range stops below 1.4.1.50, so it looks safe — our inference, not a vendor statement
netgear-r8000p (same device)
RAX75 Firmware· NETGEAR
95%
v < 1.0.3.88
Affected range stops below 1.0.3.88, so it looks safe — our inference, not a vendor statement
netgear-rax75 (same device)
RAX80 Firmware· NETGEAR
95%
v < 1.0.3.88
Affected range stops below 1.0.3.88, so it looks safe — our inference, not a vendor statement
netgear-rax80 (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://kb.netgear.com/000064057/Security-Advisory-for-Post-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2019-0069

CVSS

7.2HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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